it,代词用法.ppt

It做形式宾语和形式主语，用于代替动词不定式和从句; It做形式宾语和形式主语，用于代替动词不定式和从句;It在句型中的特殊用法; make it 及时赶到; 成功; 办成 如果你赶快,还可以及时赶到。 You can make it if you hurry. 你不必担心, 他会办到的。 You needn’t worry; he will make it. 我明白了。 I got it.;It在句型中的特殊用法;-What was the party like？ -Wonderful！ Its been years ____ I enjoyed myself so much． A. after B. when C. before D. since; It was+ 时间段+ since sb. had done sth. ;2. It is+ 时间段名词+ before ...;1.Scientists say it may be five or six years ____ it is possible to test this medicine on human patients. A. since B. after C. before D. when 2. It was some time _____ we realized the truth. A. when B. until C. since D. before 3. —How long do you think it will be ___China sends a manned spaceship to the moon? —Perhaps two or three years. A. when B. until C. that D. before;3. It is / was +时间名词+ when/ that… It was 8 o’clock he came back. ;4. It is/ was +地点名词+ where/ that … It is the place I was born. It was in the place I came to know him. ;another, more: 另外的;one + 名词, the other + 名词（单复数）: 一个；另一个；;some + 名词, other + 名词: 一些；另一些；;两者之间;other + 名词(前面没有提到过的): 另外的，其余的;不定代词的用法;人称代词的用法;人称代词的用法;特殊用法;1)one, ones, that, those;2)、前面有形容词或名词修饰（即前制定语），用one/ones; 后置定语有所有格of短语,用that /those;3)、在使用比较级、同等比较级、be equal或其他句子时： 定冠词+名词(the+名词)： 用that/ those 不定冠词+名词(a/an+名词) ： 用one/ones; I bought a dictionary three years ago and I am still using______ now. I bought a dictionary three years ago but I am going to buy a new _______soon. ;Cars do cause us some health problems — in fact far more serious _______ than mobile phones do. A. one B. ones C. it D. those 2. We’ve been looking for houses , but haven’t found _________ we like yet. A. one B. ones C. it D. them 3. I prefer a flat in Inverness to ______in Perth, because I want to live near my Mo